Grape plant named ‘ARRATHIRTEEN’

ABSTRACT

A new distinct variety of grapevine named ‘ARRATHIRTEEN’ abundantly forms attractive large seedless berries having a fire red skin coloration in medium-to-large clusters. The fruit displays a sweet crisp flavor and is firm in texture. The fruit commonly is ready for harvesting during the end of June in San Joaquin Valley of Central California, U.S.A, and displays good eating qualities as a table grape. The fruit firmness renders the fruit well amenable for handling, shipping, and storage.

Classification: The present invention relates to a new Vitis vinifera Grapevine.

Variety denomination: The new Grapevine has the varietal denomination ‘ARRATHIRTEEN’.

BACKGROUND OF THE INVENTION

A breeding program was initiated during the late 90's near Bakersfield in San Joaquin Valley of Central California. In 2001, during this breeding program, a new variety of Vitis vinifera was created by deliberate cross breeding of two parent plants by emasculation of the pollen bearing organ of the male and introducing pollen from another male origin. The female parent of the new variety was the GAR4 which is an oval shaped, dark red grape variety bearing a large seed rudiment (non-patented in the United States). The male parent (i.e. the pollen parent) of the new variety was GZR1 which is a round, pinkish grape variety (non-patented in the United States).

Comparison between ARRATHIRTEEN and FLAME

ARRATHIRTEEN FLAME Vigor Weak Vigorous Berry color Red Grayish red Berry shape Obovoid Globose Seed trace Rudimentary None Flavor None Naturally sweet

The parentage of the new variety can be summarized as follows:

GAR4×GZR1

An artificial pollination was created, and the result was an embryo which possessed unique genetic qualities. The rudiments resulting from the above pollination were embryo rescued.

In 2002 the plant was then transplanted to Bakersfield in San Joaquin Valley of Central California.

It was found that the new grapevine of the present invention possesses the following combination of characteristics:

-   -   (a) Forms attractive large seedless berries having fire red skin         coloration in medium-to-large clusters which display a natural         and a high sugar content,     -   (b) Commonly bears fruit during the end of June in the San         Joaquin Valley of Central California, U.S.A., and     -   (c) Bears fruit that is firm and is well amenable for storage,         handling, and shipping.

The new variety during observation to date has displayed no visible disease, and has displayed an ability to well resist cold, drought, heat; but sensitive to direct exposure to sun and wind. The fruit of the new variety has been found to display excellent handling and shipping qualities combined with desirable dessert eating qualities.

The new variety of the present invention has been found to undergo asexual propagation beginning in 2005 near Bakersfield in the San Joaquin Valley of Central California, U.S.A. by grafting on mature ‘Thompson Seedless’ rootstock (non-patented in the United States). Such asexual propagation has been conducted thereafter in successive years through 2008, and has shown that the characteristics of the new variety are strictly transmissible from one generation to another. Accordingly, the new variety undergoes asexual propagation in a true to type manner. The age of the plant in the drawing is five years old and the variety was created in 1989.

SUMMARY OF INVENTION

The new variety ARRATHIRTEEN is a large, fire red seedless table grape with large production, e.g., about 40 to 50 bunches per vine, and an average of about one to two bunches per shoot.

Asexual reproduction by micro propagation of the new variety as performed near Bakersfield, Calif., U.S.A., at Arvin, Calif. Ranch 33 which shows that the forgoing and other distinguishing characteristics come true to form and are established and transmitted through succeeding propagations.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying photographic illustration shows typical specimens of vegetative growth of five year old specimens of the new variety, in color as nearly true as it is reasonably possible to make in a color illustration of this character. Colors in the photograph may differ from the color values cited in the detailed botanical description below, which accurately describes the colors of the new Grapevine.

FIG. 1 shows leaves, stems and grapes of ‘ARRATHIRTEEN’.

DETAILED BOTANICAL DESCRIPTION

The chart used in the identification of colors is the R.H.S. Colour Chart of The Royal Horticultural Society. The description is based on the observation of plants growing on ‘Thompson Seedless’ rootstock outdoors near San Joaquin Valley of Central California, U.S.A.

-   Vine:     -   -   Vigor.—Very weak vine with thin foliage when over-exposed to             sun.         -   Productive capacity.—25-30 tons per hectare.         -   Trunk.—Strong, developed for its age. Ranges from 2″- 2⅜″.             Surface is roughly textured with a fibrous, shaggy exterior.             The coloring is greyed-orange (165-B). -   Time of bud burst:     -   -   Early.—Date of bud burst in specified location of culture is             Mar. 15, 2011 in Arvin, Calif. -   Young shoot:     -   -   Openness of tip.—Half open.         -   Prostrate hairs on tip.—Sparse.         -   Anthocyanin coloration of prostrate hairs on tip.—Medium.         -   Erect hairs on tip.—Sparse. -   Young leaf:     -   -   Color of upper side of blade.—Yellow green; top (yellow             green 152-A); bottom (yellow green 152-B).         -   Prostrate hairs between main veins on lower side of             blade.—Absent or very sparse.         -   Erect hairs on main veins on lower side of blade.—Absent or             very sparse. -   Shoot:     -   -   Attitude (before tying).—Horizontal.         -   Color of dorsal side of internodes.—Yellow-green (144-B).         -   Color of ventral side of internodes.—Yellow-green (173-A).         -   Color of dorsal side of nodes.—Yellow-green (144-B).         -   Color of ventral side of nodes.—Yellow-green (144-A).         -   Erect hairs on internodes.—Absent or very sparse.         -   Length of tendrils.—Medium, 2 tendrils 28 cm. -   Flower:     -   -   Sexual organs.—Fully developed stamens and fully developed             gynoecium. -   Mature leaf:     -   -   Size of blade.—Large (6.5×8 inches).         -   Shape of blade.—Wedge shaped.         -   Blistering of upper side of blade.—Absent or very weak.         -   Number of lobes.—Five.         -   Depth of upper lateral sinuses.—Deep. -   Lobed leaves:     -   -   Arrangement of lobes of upper lateral sinuses.—Strongly             overlapped.         -   Arrangement of lobes of petiole sinus.—Strongly overlapped.         -   Length of teeth.—Medium.         -   Ratio length/width of teeth.—Medium, 4 cm.         -   Shape of teeth.—Mixture of both sides straight and both             sides convex.         -   Proportion of main veins on upper side of blade with             anthocyanin coloration.—Medium.         -   Prostrate hairs between main veins on lower side of             blade.—Absent or very sparse.         -   Erect hairs on main veins on lower side of blade.—Absent or             very sparse, 4 cm.         -   Length of petiole equal compared to length of middle             vein.—Moderately shorter.         -   Top side color.—Yellow green (147-A).         -   Bottom side color.—Yellow-green (146-B).         -   Texture.—Rough.         -   Petiole.—14.5 cm.         -   Petiole color.—Yellow-green (144-A).         -   Petiole strips color.—Yellow-purple (184-C). -   Reproductive organs:     -   -   Color.—Green (143-A).         -   Size.—2 mm. -   Time of beginning of ripening: Medium, July 9 Arvin, Calif. season -   Bunch:     -   -   Size (peduncle excluded).—Medium (6.5×6 inches).         -   Average weight.—600 g.         -   Density.—Lax, single berries, some pedicels visible.         -   Length of peduncle primary bunch.—Long (2.5 inches). -   Berry:     -   -   Size.—Large, 19.1 mm.         -   Weight.—16 g per berry.         -   Shape.—Obovoid.         -   Color of skin (without bloom).—Red (grayed purple 183-C).         -   Ease of detachment from pedicel.—Moderately easy.         -   Thickness of skin.—Thin.         -   Anthocyanin coloration of flesh.—Medium.         -   Firmness and color of flesh.—Moderately firm, yellow-green             (145-D).         -   Particular flavor.—None.         -   Formation of seeds.—Rudimentary.         -   Berries per bunch.—80 berries.         -   Market use of observed plant.—Fresh market. -   Woody shoot:     -   -   Main color.—Orange brown (grayed orange 165-B).

DNA PROFILE

To further the characterize the new Arra variety DNA was extracted from dried leaf samples and DNA profiles were obtained in Spain, using base pairs for 14 standard microsatellite DNA markers. The data is presented hereafter.

Microsatellite DNA Marker Allele Sizes in Base Pairs MSV01 134 134 MSV02 226 232 MSV04 185 193 MSV06 254 256 MSV07 318 322 MSV08 258 268 MSV09 251 257 MSV10 215 215 MSV12 269 269 MSV13 168 168 MSV14 162 180 MSV15 295 299 MSV16 188 194 MSV17 153 153

The ARRATHIRTEEN variety has not been observed under all possible environmental conditions to date. Accordingly, it is possible that the phenotypic expression may vary somewhat with changes in light intensity and duration, cultural practices, and other environmental conditions. 

1. A new and distinct variety of grapevine, botanically known as Vitis vinifera, identified as ‘ARRATHIRTEEN’, substantially as shown and described herein. 